Inflatable cable terminal quick dismounting device and use method thereof

Abstract

The invention discloses an inflatable cable terminal quick dismounting device and a use method thereof, and relates to the field of power cable construction and repair, the inflatable cable terminal quick dismounting device comprises a base, a guide mechanism, an inflation unit, a clamping unit and an adjusting assembly, and the center of the base is provided with a round hole; the guide mechanism comprises a fixing plate and two connecting rods, the connecting rods are sleeved with guide sleeves, the guide sleeves are fixedly installed on the base, and the base can slide along the connecting rods. By starting the high-pressure air pump, high-pressure air is injected into the T-shaped head through the inflation pipe, the cylindrical body and the conical air head, cured silicone grease is loosened under the action of the high-pressure air, and the cured silicone grease is solidified. Meanwhile, part of negative pressure in the cavity of the T-shaped head can be offset, so that the purpose of separating the T-shaped head from the equipment connecting piece or the cable is achieved, the cable terminal dismounting time is effectively shortened, the dismounting efficiency is improved, the labor cost is saved, damage to the T-shaped head and the equipment connecting piece can be avoided, safe operation of equipment is facilitated, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of emergency repair of power cable construction, and in particular relates to an inflatable cable terminal quick disassembly device and a use method thereof. Background Art

[0002] When the two ends of the power cable are connected to the cable or other electrical equipment, a connection device that can meet certain insulation and sealing requirements is required, which is called a cable terminal. According to different usage occasions, cable terminals can be divided into indoor terminals (referred to as indoor terminals), outdoor terminals (referred to as outdoor terminals) and equipment terminals (T-type terminals, elbow-type terminals).

[0003] The T-type connector has excellent electrical properties, and is tear-resistant, ozone-resistant, oxidation-resistant, corrosion-resistant, and has high mechanical strength. It is widely used in power distribution networks.

[0004] At present, manual disassembly is still used during the construction and repair of T-heads (including the removal of the connection between the T-head and the equipment and the connection between the T-head and the cable). However, due to the long-term operation of the cable terminal, the silicone grease inside it gradually solidifies and adheres to the equipment connector. In addition, the T-head generally adopts a negative pressure chamber structure. Under the action of external air pressure, it is quite difficult to pull out the T-head. It requires multiple people to use ropes, and even use sharp tools to pry it open and shake it to pull it out. In order to pull out the T-head, the T-head is even directly destroyed. On the one hand, it is time-consuming and labor-intensive, inefficient, and prolongs the maintenance time. On the other hand, it will cause certain damage to the T-head and equipment connectors, increasing the equipment operation and maintenance costs.

[0005] Therefore, we propose an inflatable cable terminal quick disassembly device to solve the above problems. Summary of the invention

[0006] In view of the problem that at present, manual disassembly is still adopted during the construction and emergency repair of T-heads, which is time-consuming, labor-intensive, inefficient, and may also cause certain damage to the T-head and equipment connectors, thereby increasing the equipment operation and maintenance costs, the present invention provides an inflatable cable terminal quick disassembly device and a method for using the same.

[0007] The solution adopted by the present invention to solve the technical problem is: an inflatable cable terminal quick disassembly device, comprising a base, a guide mechanism, an inflating unit, a clamping unit and an adjustment component, wherein a circular hole is opened at the center of the base; The guide mechanism comprises a fixed plate and two connecting rods, the connecting rods are sleeved with guide sleeves, the guide sleeves are fixedly mounted on the base, so that the base can slide along the connecting rods, and the fixed plate is fixedly mounted on the right ends of the two connecting rods; The clamping unit includes a clamping plate, two connecting pieces and two connecting blocks. The two connecting blocks are respectively fixedly installed at the left ends of the two connecting rods. An arc-shaped clamp is fixedly installed between the two connecting blocks. The clamping plate is arranged at the open end of the arc-shaped clamp. The clamping plate and the connecting block are detachably connected through the connecting piece. The inflation unit includes a cylindrical body and a high-pressure air pump. The cylindrical body is arranged in the circular hole, and an inflation joint is installed on the top of the cylindrical body. The high-pressure air pump and the inflation joint are connected by an inflation pipe. The left and right ends of the cylindrical body are respectively fixedly connected with a conical air head and a baffle plate, the baffle plate is in contact with the right side surface of the base, the conical air head and the inner cavity of the cylindrical body are connected to each other, and the end of the conical air head away from the cylindrical body is an air filling port; The adjusting component is installed on the fixing plate and connected with the baffle plate to drive the baffle plate and the base to move.

[0008] Preferably, handles are fixedly mounted on the top and bottom of the base respectively.

[0009] Preferably, a first threaded hole is formed at the lower end of the connection block, and second threaded holes are formed at both ends of the clamping plate.

[0010] Preferably, the connecting member is a connecting bolt, which passes through the first threaded hole and is connected to the second threaded hole.

[0011] Preferably, the adjustment assembly includes an adjusting screw, a connecting seat and a fixing nut, the fixing nut is mounted on the fixing plate, the adjusting screw is threadedly connected to the fixing nut, the optical axis end of the adjusting screw is provided with a bearing, the bearing is mounted on the connecting seat, and the connecting seat is fixedly mounted on the right side of the baffle.

[0012] Preferably, a rotating rod is provided at the right end of the adjusting screw.

[0013] Preferably, the adjustment assembly is a hydraulic rod mounted on the fixed plate, and the telescopic end of the hydraulic rod passes through the fixed plate and is connected to the baffle.

[0014] Preferably, it also includes a double-section threaded rod, the left and right ends of the double-section threaded rod are respectively threadedly connected with a plug and a connecting nut, and the connecting nut is fixedly installed on the left side of the inner wall of the cylindrical body.

[0015] Preferably, a hexagonal groove is formed at one end of the plug away from the double-section threaded rod.

[0016] A method for using an inflatable cable terminal quick-disassembly device comprises the following steps: S1. When removing the connection between the T-head and the equipment, place the arc clamp buckle on the outside of the T-head, make the clamp plate contact the left side of the two connection blocks, and use the connector to connect and fix the clamp plate and the connection block, and fix the T-head between the clamp plate and the arc clamp; S2. Use a pipe clamp to lock and fix the lower end of the T-type head to prevent gas from flowing to the lower end, causing the T-type head to separate from the cable connection part in advance; S3, operate the adjustment assembly to move the baffle plate, the base, and the conical air head toward the T-shaped head, and insert the conical air head into the tail end of the T-shaped head; S4. Connect the inflation tube to the inflation joint, start the high-pressure air pump, and inject high-pressure air into the T-head through the inflation tube, the cylindrical body and the conical air head. Under the action of the high-pressure air, the solidified silicone grease is loosened, and at the same time, part of the negative pressure in the cavity of the T-head can be offset to achieve the purpose of separating the T-head from the equipment connector. Finally, after disassembly, turn off the high-pressure air pump; S5. Next, when it is necessary to remove the connection between the T-head and the cable, first remove the pipe clamp, then insert one end of the double-section threaded rod from the front end of the T-head and threadably connect it with the connecting nut; S6. Thread the plug into the other end of the double-section threaded rod, insert the hexagonal wrench into the hexagonal groove, and use the hexagonal wrench to screw the plug into the front end of the T-shaped head to seal the front end of the T-shaped head to prevent gas from flowing out through the front end of the T-shaped head; S7. Start the high-pressure air pump to inject high-pressure air into the T-head through the inflation tube, cylindrical body and conical air head. Under the action of high-pressure air, the solidified silicone grease is loosened, and at the same time, part of the negative pressure in the cavity of the T-head can be offset to achieve the purpose of separating the T-head from the cable. Finally, after the cable is removed, turn off the high-pressure air pump.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention starts a high-pressure air pump to inject high-pressure air into the T-head through the inflation tube, the cylindrical main body and the conical air head. Under the action of the high-pressure air, the solidified silicone grease is loosened, and at the same time, part of the negative pressure in the cavity of the T-head can be offset to achieve the purpose of separating the T-head from the equipment connector or cable, thereby effectively reducing the cable terminal disassembly time, improving the disassembly efficiency, saving labor costs, and avoiding damage to the T-head and the equipment connector, which is beneficial to the safe operation of the equipment and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the present invention when the T-type connector is removed and connected to the device; Figure 5 This is a schematic diagram of the present invention when the T-type connector and the cable are removed.

[0019] In the figure: 1 base, 2 handle, 31 baffle, 32 cylindrical body, 33 conical air head, 34 charging joint, 41 connecting seat, 42 fixing plate, 43 fixing nut, 44 adjusting screw, 45 rotating rod, 5 guide sleeve, 6 connecting rod, 71 connecting block, 72 arc clamp, 73 connecting bolt, 74 splint, 81 double-section threaded rod, 82 plug, 83 connecting nut, 84 hexagonal groove, 91 charging tube, 92 high-pressure air pump, 10 T-head, 11 pipe clamp. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-5 The present invention provides a technical solution of an inflatable cable terminal quick disassembly device and a method of using the same: Embodiment 1: according to Figure 1-5 As shown, it includes a base 1, a guide mechanism, an inflation unit, a clamping unit and an adjustment component. A circular hole is opened at the center of the base 1, and handles 2 are fixedly installed on the top and bottom of the base 1, respectively, so that the user can use the handles 2 to lift the device and carry it.

[0022] The guide mechanism includes a fixed plate 42 and two connecting rods 6. The connecting rods 6 are sleeved with guide sleeves 5. The guide sleeves 5 are fixedly mounted on the base 1 so that the base 1 can slide along the connecting rods 6. The fixed plate 42 is fixedly mounted on the right ends of the two connecting rods 6.

[0023] The clamping unit includes a clamping plate 74, two connecting pieces and two connecting blocks 71. The two connecting blocks 71 are respectively fixedly installed on the left ends of the two connecting rods 6. An arc-shaped clamp 72 is fixedly installed between the two connecting blocks 71. The clamping plate 74 is arranged at the open end of the arc-shaped clamp 72. A threaded hole 1 is provided at the lower end of the connecting block 71. Threaded holes 2 are respectively provided at both ends of the clamping plate 74. The connecting piece is a connecting bolt 73. The connecting bolt 73 passes through the threaded hole 1 and is connected to the threaded hole 2 to connect the clamping plate 74 and the connecting block 71, and fix the T-head 10 between the clamping plate 74 and the arc-shaped clamp 72.

[0024] The inflation unit includes a cylindrical body 32 and a high-pressure air pump 92 . The cylindrical body 32 is disposed in a circular hole, and an inflation connector 34 is installed on the top thereof. The high-pressure air pump 92 and the inflation connector 34 are connected via an inflation tube 91 .

[0025] The left and right ends of the cylindrical main body 32 are respectively fixedly connected with a conical air head 33 and a baffle 31. The baffle 31 contacts the right side surface of the base 1. The conical air head 33 and the inner cavity of the cylindrical main body 32 are connected to each other. The end of the conical air head 33 away from the cylindrical main body 32 is the inflation port. The conical air head 33 has a conical shape and is connected to the tail end of the cable terminal. It can adapt to European and American elbow head 10 interfaces, thereby improving the scope of use of the device.

[0026] The adjusting assembly includes an adjusting screw 44, a connecting seat 41 and a fixing nut 43. The fixing nut 43 is installed on the fixing plate 42. A rotating rod 45 is provided at the right end of the adjusting screw 44. The adjusting screw 44 is threadedly connected to the fixing nut 43. A bearing is mounted on the optical axis end of the adjusting screw 44. The bearing is mounted on the connecting seat 41. The connecting seat 41 is fixedly installed on the right side of the baffle plate 31. The adjusting screw 44 is driven to rotate by rotating the rotating rod 45 in the forward direction. During the rotation process, the adjusting screw 44 drives the baffle plate 31 and the base 1 to move, and moves toward the T-head 10, so that the conical air head 33 is inserted into the tail end of the T-head 10 to prevent the conical air head 33 from detaching from the T-head 10 during the inflation process.

[0027] It also includes a double-section threaded rod 81, and the left and right ends of the double-section threaded rod 81 are respectively threadedly connected with a plug 82 and a connecting nut 83. The connecting nut 83 is fixedly installed on the left side of the inner wall of the cylindrical main body 32. The end of the plug 82 away from the double-section threaded rod 81 is provided with a hexagonal groove 84, which is convenient for the user to insert a hexagonal wrench into the hexagonal groove 84, and drive the plug 82 to rotate by operating the hexagonal wrench, and screw the plug 82 into the front end of the T-head 10 to block the front end of the T-head 10 to prevent gas from flowing out through the front end of the T-head 10.

[0028] When used specifically, the method for using the inflatable cable terminal quick-disassembly device of the present invention comprises the following steps: S1. When removing the connection between the T-shaped head 10 and the equipment, buckle the arc-shaped clamp 72 on the outside of the T-shaped head 10, make the clamp 74 contact the left side of the two connecting blocks 71, and use the connecting bolts 73 to connect and fix the clamp 74 and the connecting block 71, and fix the T-shaped head 10 between the clamp 74 and the arc-shaped clamp 72; S2. Use the pipe clamp 11 to lock and fix the lower end of the T-shaped head 10 to prevent the gas from flowing to the lower end, causing the T-shaped head 10 to be separated from the cable connection part in advance; S3, operate the rotating rod 45 to drive the adjusting screw 44 to rotate in the positive direction. During the rotation of the adjusting screw 44, the baffle plate 31, the base 1, and the conical air head 33 move toward the T-shaped head 10, and the conical air head 33 is inserted into the tail end of the T-shaped head 10; S4, connect the inflation tube 91 to the inflation connector 34 (such as Figure 4As shown in the figure), start the high-pressure air pump 92, so that the high-pressure air is injected into the T-shaped head 10 through the inflation tube 91, the cylindrical body 32 and the conical air head 33. Under the action of the high-pressure air, the solidified silicone grease is loosened, and at the same time, the negative pressure in the cavity of the T-shaped head 10 is partially offset, so as to achieve the purpose of separating the T-shaped head 10 from the equipment connector. Finally, after disassembly, turn off the high-pressure air pump 92; S5. Next, when the connection between the T-shaped head 10 and the cable needs to be removed, first remove the pipe clamp 11, and then insert one end of the double-section threaded rod 81 from the front end of the T-shaped head 10 and threadably connect it to the connecting nut 83; S6. Thread the plug 82 into the other end of the double-section threaded rod 81, insert the hexagonal wrench into the hexagonal groove 84, and use the hexagonal wrench to screw the plug 82 into the front end of the T-shaped head 10 to block the front end of the T-shaped head 10 to prevent the gas from flowing out through the front end of the T-shaped head 10 (such as Figure 5 shown); S7. Start the high-pressure air pump 92 to inject high-pressure air into the T-head 10 through the inflation tube 91, the cylindrical body 32 and the conical air head 33. Under the action of the high-pressure air, the solidified silicone grease is loosened, and at the same time, part of the negative pressure in the cavity of the T-head 10 is offset to achieve the purpose of separating the T-head 10 from the cable. Finally, after the cable is removed, turn off the high-pressure air pump 92.

[0029] Embodiment 2: Based on the first embodiment, the difference is as follows: the adjustment component is a hydraulic rod installed on the fixed plate 42 , and the telescopic end of the hydraulic rod passes through the fixed plate 42 and is connected to the baffle 31 .

Claims

1. An inflatable cable terminal quick-disassembly device, comprising a base, a guide mechanism, an inflating unit, a clamping unit and an adjustment component, characterized in that: A circular hole is provided at the center of the base; The guide mechanism comprises a fixed plate and two connecting rods, the connecting rods are sleeved with guide sleeves, the guide sleeves are fixedly mounted on the base, so that the base can slide along the connecting rods, and the fixed plate is fixedly mounted on the right ends of the two connecting rods; The clamping unit includes a clamping plate, two connecting pieces and two connecting blocks. The two connecting blocks are respectively fixedly installed at the left ends of the two connecting rods. An arc-shaped clamp is fixedly installed between the two connecting blocks. The clamping plate is arranged at the open end of the arc-shaped clamp. The clamping plate and the connecting block are detachably connected through the connecting piece. The inflation unit includes a cylindrical body and a high-pressure air pump. The cylindrical body is arranged in the circular hole, and an inflation joint is installed on the top of the cylindrical body. The high-pressure air pump and the inflation joint are connected by an inflation pipe. The left and right ends of the cylindrical body are respectively fixedly connected with a conical air head and a baffle plate, the baffle plate is in contact with the right side surface of the base, the conical air head and the inner cavity of the cylindrical body are connected to each other, and the end of the conical air head away from the cylindrical body is an air filling port; The adjusting component is installed on the fixing plate and connected with the baffle plate to drive the baffle plate and the base to move.

2. The inflatable cable terminal quick release device according to claim 1, characterized in that: The top and bottom of the base are respectively fixedly mounted with handles.

3. The inflatable cable terminal quick release device according to claim 1, characterized in that: The lower end of the connecting block is provided with a first threaded hole, and the two ends of the clamping plate are respectively provided with second threaded holes.

4. The inflatable cable terminal quick release device according to claim 3, characterized in that: The connecting piece is a connecting bolt, which passes through the first threaded hole and is connected with the second threaded hole.

5. The inflatable cable terminal quick-release device according to claim 1, characterized in that: The adjustment assembly includes an adjustment screw, a connecting seat and a fixing nut. The fixing nut is installed on the fixing plate. The adjustment screw is threadedly connected to the fixing nut. The optical axis end is provided with a bearing, which is installed on the connecting seat. The connecting seat is fixedly installed on the right side of the baffle.

6. The inflatable cable terminal quick-release device according to claim 5, characterized in that: The right end of the adjusting screw is provided with a rotating rod.

7. The inflatable cable terminal quick-release device according to claim 1, characterized in that: The adjusting assembly is a hydraulic rod installed on the fixed plate, and the telescopic end of the hydraulic rod passes through the fixed plate and is connected to the baffle.

8. The inflatable cable terminal quick-release device according to claim 1, characterized in that: It also includes a double-section threaded rod, the left and right ends of which are respectively threadedly connected with a plug and a connecting nut, and the connecting nut is fixedly installed on the left side of the inner wall of the cylindrical body.

9. The inflatable cable terminal quick-release device according to claim 8, characterized in that: A hexagonal groove is formed on one end of the plug away from the double-section threaded rod.

10. The method for using the inflatable cable terminal quick-release device according to claim 9, characterized in that: The following steps are involved: S1. When removing the connection between the T-head and the equipment, place the arc clamp buckle on the outside of the T-head, make the clamp plate contact the left side of the two connection blocks, and use the connector to connect and fix the clamp plate and the connection block, and fix the T-head between the clamp plate and the arc clamp; S2. Use a pipe clamp to lock and fix the lower end of the T-type head to prevent gas from flowing to the lower end, causing the T-type head to separate from the cable connection part in advance; S3, operate the adjustment assembly to move the baffle plate, the base, and the conical air head toward the T-shaped head, and insert the conical air head into the tail end of the T-shaped head; S4. Connect the inflation tube to the inflation joint, start the high-pressure air pump, and inject high-pressure air into the T-head through the inflation tube, the cylindrical body and the conical air head. Under the action of the high-pressure air, the solidified silicone grease is loosened, and at the same time, part of the negative pressure in the cavity of the T-head can be offset to achieve the purpose of separating the T-head from the equipment connector. Finally, after disassembly, turn off the high-pressure air pump; S5. Next, when it is necessary to remove the connection between the T-head and the cable, first remove the pipe clamp, then insert one end of the double-section threaded rod from the front end of the T-head and threadably connect it with the connecting nut; S6. Thread the plug into the other end of the double-section threaded rod, insert the hexagonal wrench into the hexagonal groove, and use the hexagonal wrench to screw the plug into the front end of the T-shaped head to seal the front end of the T-shaped head to prevent gas from flowing out through the front end of the T-shaped head; S7. Start the high-pressure air pump to inject high-pressure air into the T-head through the inflation tube, cylindrical body and conical air head. Under the action of high-pressure air, the solidified silicone grease is loosened, and at the same time, part of the negative pressure in the cavity of the T-head can be offset to achieve the purpose of separating the T-head from the cable. Finally, after the cable is removed, turn off the high-pressure air pump.

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